Experimental characterization of a synchronous frequency-hopping spread-spectrum transceiver for wireless optical communications

2003 ◽  
Author(s):  
Santiago T. Perez Suarez ◽  
Jose A. Rabadan ◽  
Francisco A. Delgado ◽  
Jose R. Velazquez ◽  
Rafael Perez Jimenez
Keyword(s):  
Optical Communications ◽  
Spread Spectrum ◽  
Frequency Hopping ◽  
Experimental Characterization ◽  
Frequency Hopping Spread Spectrum ◽  
Wireless Optical Communications

Analisis Karakterisasi Teknologi Direct Sequence Spread Spectrum Dan Frequency Hopping Spread Spectrum

2019 ◽  
Vol 2 (2) ◽  
pp. 129-138
Author(s):  
Fawzan Galib Abdul Karim Bawahab ◽  
Elvan Yuniarti ◽  
Edi Kurniawan
Keyword(s):  
Spread Spectrum ◽  
Communication Systems ◽  
Multiple Access ◽  
Frequency Hopping ◽  
Direct Sequence Spread Spectrum ◽  
Direct Sequence ◽  
Frequency Hopping Spread Spectrum ◽  
Two Systems ◽  
The Difference

Abstrak. Pada penelitian ini, telah dilakukan analisa karakterisasi pada teknologi Direct Sequence Spread Spectrum dan Frequency Hopping Spread Spectrum, sebagai salah satu teknik multiple-access pada sistem komunikasi. Karakterisasi dilakukan untuk mencari bagaimana cara meningkatkan keoptimalan kedua sistem tersebut, dalam mengatasi masalah interferensi dengan sistem dan channel yang sama. Dan juga untuk menentukan veriabel apa yang mempengaruhi keoptimalan kedua sistem tersebut. Karakterisasi dilakukan dengan menentukan variabel-variabel yang mempengaruhi keoptimalan keduanya. Hasil dari karakterisasi, diketahui variabel-variabel yang mempengaruhi kemampuan sistem DSSS yaitu nilai frekuensi spreading (). Sedangkan untuk sistem FHSS yaitu nilai frekuensi spreading ( dan ) dan selisih antara frekuensi hopping data dengan frekuensi hopping interferensi . Kata Kunci: BER, DSSS, FHSS, Interference, Spread spectrum. Abstract. In this study, characterization of Direct Sequence Spread Spectrum and Frequency Hopping Spread Spectrum technologies have been done, as one of the multiple-access techniques in communication systems. Characterization is done to find out how to improve the ability of the two systems, in solving interference problems with the same system and channel. And also to determine what veriabel affects the ability of the two systems. Characterization is done by determining the variables that affect the ability of both. The results of the characterization, known variables that affect the ability of the DSSS system are the spreading frequency value (). As for the FHSS system, the spreading frequency value ( and ) and the difference between frequency hopping data with frequency hopping interference .

scholarly journals Construction of Optimal Sets of Frequency Hopping Sequences

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Bin Wen
Keyword(s):  
Spread Spectrum ◽  
Frequency Hopping ◽  
Direct Sequence Spread Spectrum ◽  
Direct Sequence ◽  
Frequency Hopping Spread Spectrum ◽  
Frequency Hopping Sequences ◽  
Cdma Systems ◽  
Theoretic Characterization ◽  
Optimal Set

Frequency hopping spread spectrum and direct sequence spread spectrum are two main spread coding technologies. Frequency hopping sequences are needed in FH-CDMA systems. In this paper, a construction of optimal sets of frequency hopping sequences is presented. The construction is based on the set-theoretic characterization of an optimal set of FH sequences.

Compressive Sampling for Detection of Frequency-Hopping Spread Spectrum Signals

2016 ◽  
Vol 64 (21) ◽  
pp. 5513-5524 ◽  
Author(s):  
Feng Liu ◽  
Michael W. Marcellin ◽  
Nathan A. Goodman ◽  
Ali Bilgin
Keyword(s):  
Spread Spectrum ◽  
Frequency Hopping ◽  
Compressive Sampling ◽  
Frequency Hopping Spread Spectrum ◽  
Spread Spectrum Signals
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